ipq40xx: enable RX hash / CTAG TX offloading for single-phy

This re-enables offloading features disabled by
commit 9da2b567605b ("ipq40xx: fix ethernet vlan double tagging").

Single-PHY devices use port-based VLANs on the switch, therefore no
S-TAG magic is involved here. Re-enabling these features restores
throughput back to 950 Mbit/s.

Reported-by: Jannis Pinter <[email protected]>
Signed-off-by: David Bauer <[email protected]>

target/linux/ipq40xx/files/drivers/net/ethernet/qualcomm/essedma/edma_axi.c

@@ -978,11 +978,20 @@ static int edma_axi_probe(struct platform_device *pdev)
 		edma_netdev[i]->wanted_features = NETIF_F_HW_CSUM | NETIF_F_SG |
 					     NETIF_F_TSO | NETIF_F_GRO;
 
+		if (of_property_read_bool(np, "qcom,single-phy") && edma_cinfo->num_gmac == 1)
+			edma_netdev[i]->features |= NETIF_F_HW_VLAN_CTAG_TX;
+
 #ifdef CONFIG_RFS_ACCEL
 		edma_netdev[i]->features |=  NETIF_F_NTUPLE;
 		edma_netdev[i]->hw_features |=  NETIF_F_NTUPLE;
 		edma_netdev[i]->vlan_features |= NETIF_F_NTUPLE;
 		edma_netdev[i]->wanted_features |= NETIF_F_NTUPLE;
+		if (of_property_read_bool(np, "qcom,single-phy") && edma_cinfo->num_gmac == 1) {
+			edma_netdev[i]->features |= NETIF_F_RXHASH;
+			edma_netdev[i]->hw_features |= NETIF_F_RXHASH;
+			edma_netdev[i]->vlan_features |= NETIF_F_RXHASH;
+			edma_netdev[i]->wanted_features |= NETIF_F_RXHASH;
+		}
 #endif
 		edma_set_ethtool_ops(edma_netdev[i]);